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Finding the Fourth Proportional to 518,256.95, 777,496.12 and 181,308.58

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Solution

The fourth proportional to 518,256.95, 777,496.12 and 181,308.58 is: 272,001.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,256.95 : 777,496.12 = 181,308.58 : x
  2. Step 2: Convert to fraction form
    518,256.95/777,496.12 = 181,308.58/x
  3. Step 3: Cross multiply
    518,256.95x = 777,496.12 × 181,308.58
  4. Step 4: Simplify right side
    518,256.95x = 140,966,715,075.70
  5. Step 5: Solve for x
    x = 140,966,715,075.70/518,256.95
  6. Step 6: Final answer
    x = 272,001.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.